Car-truck side frame.



W. D. FORSYTH. GAR TRUCK SIDE FRAME.

APPLIOATION FILED 1,110.4, 1913.

1,125,295. Patented Jan. 19,1915.

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Patent-ed Jan. 19, 1915.

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UNITED STATES PA ENT Enron.

WILLIAM D. FORSY'I'I-I, OF YOUNGSTOWN, OHIO, ASSIG-NOR TO RAILWAYPRODUCTS CORPORATION, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

OAR-TRUCK SIDE FRAME.

Application filed December 4, 1913.

To all whom it may concern:

Be it known that I, WILLIAM D. FonsY'rH, a citizen of the United States,residing at Youngstown, in the county of Mahoning and State of Ohio,have invented new and useful Improvements in Car-Truck Side Frames, ofwhich the following is a specification.

This invention relates to car truck side frames made from commercialstructural shapes.

The principal object of this invention is to provide a car truck sideframe made from ordinary commercial structural shapes.

This invention, among other things, consists of a car truck side framewherein the compression and tension members are made of metal structuralshapes in ordinary'use, which are connected to each other by an openframe which constitutes the bolster guide bars.

In the accompanying drawings forming part of this specification, Figure1 represents an end view of the structural shape from which thecompression member is preferably made; Fig. 2 is a side view of Fig. 1,with dotted lines showing the shearing of the flanges and the thicknessof the web of the shape shown in Fig. 1; Fig. 3 is a structural shapefrom which the tension member is preferably made; Fig. 4 is a side viewof Fig. 3, with dotted lines showing the shearing of its flanges and thethickness of its web; Fig. 5 is an end view of the shape shown in Fig. 1and Fig. 2 after the same has been formed into the compression member;Fig. 6 is a side view of Fig. 5;.Fig. 7 is a bottom plan view of Fig. 6;Fig. 8 is an end view of Fig. 9; Fig. 9 is a side view of Fig. 4:, afterthe shape shown therein has been sheared and shaped; Fig. 10 is a bottomplan view of Fig. 9; Fig. 11 is an end view of the side frame; Fig. 12is a side view of the same; Fig. 13 is a section of Fig. 14 on line AA;Fig. 14 is a side view of the truck frame showing a modifiedconstruction with the open frame forming the bolster guide bars inposition; Fig. 15 is a section on the line 15-15 on Fig. 12.

In the drawings, like reference characters refer to like partsthroughout the several views.

In the car truck side frame shown, the upper or compression member ismade from a channel 1. The edges of the flanges 3 of Specification ofLetters Patent.

Serial No. 804,678.

the channel 1 are partly cut away to make sald flanges 3 widest atpoints near their ends and comparatively narrow at their ends and attheir middles, as indicated by the dotted lines 2 in Fig. 2. The web 5of the channel 1 is cut out to form an opening 25 and an opening 26 neareach end, as shown in Fig. 6; and this leaves the end portions 17 and 18of the web 5 at each end of the channel between the points 15 and 11,and 12 and 16 respectively, integral with the flanges 3, and a middleportion 19 between the points 13 and 14 also integral with the flanges3. The middle portion 19 of the web 5 between the end portions 17 and 18is arched up, with the result that the outer edges of the flanges 3 arecurved, as shown in Fig. 6.

Patented Jan. 19, 1915.

The lower or tension member of the side rame is made from a channel 6having flanges 7 and web 8. The flanges 7 are cut off at each end of thechannel 6 along the web 8 from its ends a short distance to a pointindicated by the numeral 10, leaving end portions 22 and 23 of the web8, and then along oblique lines indicated by the dotted lines betweenthe points 10 and 20, and 10 and 21. The middle part of the channel 6between the points 10 and 10 is displaced relative to the plane of theend portions 22 and 23 of the web 8, as shown inFig. 9, to form astraight middle portion 29 lying in a plane parallel to the plane ofsaid end portions 22 and 23, and two diverging portions 28 and 30. Theend portions 22 and 23 of the web 8 are bent up so as to besubstantially parallel with each other, as indicated by the dotted linesin Fig. 9, and the extreme ends 32 and 33 of the end portions 22 and 23are bent down at right angles to said end portions 22 and 23.

The end portions 22 and 23 of the channel 6 are passed through theopenings 25 and 26 in the web 5 of the channel 1, and are bent down intocontact with the end portions 17 and 18 of said web 5. The ends 32 and33 of said end portions 22 and 23 engage over the end edges of said endportions 17 and 18. The end portions 22 and 23 of the channel 6 arepreferably fastened to the end portions 17 and 18 of the channel 1 bybolts or rivets 36. In the end portions 17 and 18 of the channel 1 areholes 34 and in the end portions 22 and 23 of the channel 6 are holes 35and through these holes pass the bolts which fasten the ournal boxes tothe side frame.

The side frame is completed by mounting an open frame 4L2, having sides&3 which act as bolster guide bars, between the channel 1 and thechannel 6. The frame 42 may be cast or made from a structural shape or ametal plate. The frame 42 has two spaced fins 1% which straddle thechannel. 1 and the channel 6, and which are fastened by rivets to theflanges 3 and the flanges 7 thereof respectively.

In the modified form of construction shown in Figs. 13 and 1 1, the web5 of the channel 1 between the end portions 17 and 18 thereof isentirely removed. An open frame 37 is fastened to the channel 1 and thechannel 6. The flanges 38 at the top of said open frame 37 engage theinside faces of the flanges 3 of the channel'l; and at the bottom ofsaid open frame 37, said flanges 3S engage the outside faces of theflanges 7 of the channel 6. Otherwise the construction shown in Figs. 13and let is the same as in the preferred form.

The channels 1 and 6 may be rolled cominercial structural shapes, orthey may be cut and bent from plates. The ends 32 and 33 of the endportions 22 and 23 of the web 8 of the channel 6 hook over the end edgesof the end portions 17 and 18 of the web 5 of the channel 1 andstrengthen the connec tion between the channel 1 and the channel 6.

The constructions shown and described herein may be considerablymodified without departing from the invention, and I do not wish to belimited to the details of such constructions.

What I claim as my invention is:

1. A car truck side frame comprising a compression member and a tensionmember, each consisting of a channel, the web of the channelconstituting said compression member being cut away between its endportions,

the flanges of the channel constituting said tension member being cutaway at its end portions, the end portions of the tension member beingsuperimposed upon the end portions of the compression member and beingfastened thereto.

A car truck side frame comprising a compression member consisting of achannel whose web is cut away between the end portions thereof, atension member consisting of a channel whose flanges are cut away fromthe end portions thereof, the end portions of said tension member beingsuperimposed upon the end portions of said compression member, the endsof said tension member being bent over the end edges of said compressionmember.

3. A car truck side frame comprising a compression member consisting ofa channel whose web is cut away between the end portions thereof, andwhose flanges have their middle portions displaced from the plane ofsaid end portions in a direction perpendicular to said plane of said endportions, and a separate tension member whose end portions are fastenedto the end portions of said compression member.

a. A car truck side frame comprising a tension member consisting of achannel whose flanges are cut away from the end portions thereof, andwhose middle portion is displaced from the plane of said end portions ina direction perpendicular to said plane of said end portions, the endsof said end portions being bent along transverse lines at right anglesthereto.

In witness whereof I have hereunto subscribed my name in the presence oftwo subscribing witnesses.

WILLIAM D. FORSYTH.

lVitnesses M. E. THOMAS, J. F. CALLAHAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

